[Insight-users] Problems with SparseImage

[hanifa mohamed]

Hi, 

      I was intending to use SparseImages in ITK. However, its been hard frustrating search. Firstly, the ITK doc makes no mention of it in the entire pdf. After some searching, I found a source in the InsightToolkit-3.14.0/Testing/Code/Common/itkSparseImageTest.cxx.

However, it seems that it is not possible to interchangabily use SparseImages and normal itk::Images.
I tried writing a SparseImage via FileWriter and also tried running some filters on them. But it spits out countless errors.

I have slightly modified the itkSparseImage.cxx to illustrate that point. I have attached that source code in this post. Pls run it and suggest if there any changes I can make.



My Questions : 1) Does ITK discourage the use of itk::SparseImage cos it has some inherent deficiencies ? There doesnt seem to be any documentation on it.
                       2) Is it possible to use SparseImages like normal itk::Images. Like I/O operations or usage of common filters. I saw there is only one filter,FiniteDifferenceSparseImageFilter which looks like specifically written for SparseImages. 

                       3) If the itk::SparseImage is not able to do the above, are there any alternatives ???

Even after countless googling, the online community didnt yield any concrete answers ?

Thanks for the help folks.


Regards
-------------- next part --------------
A non-text attachment was scrubbed...
Name: SparseImageTest.cxx
Type: application/octet-stream
Size: 3141 bytes
Desc: not available
URL: <http://www.itk.org/pipermail/insight-users/attachments/20110615/0437c969/attachment.obj>